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- ESD flooring, urethane cement, terrazzo, and polished concrete
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- Testing, documentation, and defined project closeout
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Wear Resistance
Polished concrete wear resistance depends on the quality of the concrete surface, its preparation and treatment, and the traffic and maintenance it receives. Abrasive dirt carried across the floor adds wear. A densifier can improve surface abrasion resistance, but it cannot make every slab equally wear-resistant.
At Craftsman Concrete, we assess the slab and its intended use before selecting the preparation and treatment sequence. We use an on-site sample to evaluate how the concrete responds to polishing and establish the intended finish with the project team.
What affects wear on a polished floor
The concrete surface and the way the floor is used both affect wear. Mix, finishing and curing affect the surface available for polishing, a weak surface needs identifying during planning, and densification may improve hardness depending on the concrete’s condition. In service, dirt and grit can act as abrasives, and cleaning needs to suit the installed treatment.
Wear resistance starts with the concrete
The concrete mix, finishing and curing affect the surface available for polishing. A weak surface needs to be identified during planning; polishing alone does not establish that it will perform like sound concrete.
The Concrete Polishing Council’s guidance on weak surfaces identifies increased aggregate loss, lower gloss and reduced service life as possible outcomes. Densification may improve surface hardness, but its effectiveness depends on the concrete’s condition and available reaction chemistry.
Our concrete densifier guide explains selection, preparation and application.
Traffic and maintenance affect wear
The floor’s use matters alongside its initial surface quality. Dirt and grit can act as abrasives under traffic. Removing them reduces the material being tracked and worked across the surface.
Cleaning also needs to suit the installed treatment. Aggressive pads can scratch or remove protective treatments, so maintenance should follow the care requirements for the actual floor.
What abrasion tests measure
ASTM C779/C779M-19 describes three procedures for measuring relative abrasion resistance of horizontal concrete surfaces. The procedures apply different abrasive forces and can help evaluate differences in concrete, curing, finishing and surface treatment.
The procedure must be identified with the result. A wear value from one procedure should not be treated as interchangeable with another without evidence supporting the comparison.
What to look for in a test report
| Report item | Why it matters |
|---|---|
| Test method and procedure | Establishes how abrasive force was applied and wear was measured. |
| Sample identification | Connects each result to the material tested. |
| Concrete mixture and age | Helps establish whether samples are comparable. |
| Preparation and treatment | Identifies what changed between the control and treated samples. |
| Units and test duration | Shows how much wear occurred and over what period. |
| Replicate results and variability | Helps establish how consistently the result was reproduced. |
A sample label alone does not establish its mixture, treatment or preparation. Missing information limits the conclusions that can be drawn from a comparison.
A test result does not predict years of service
ASTM C779/C779M-19 expressly excludes using its procedures to quantify expected service life. A lower wear result therefore does not, by itself, establish a proportional increase in years of use.
Use the report to understand the tested samples under the stated conditions. Our polished concrete quality guide explains how performance evidence fits into the project’s quality plan.
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Frequently Asked Questions
No. A densifier can harden the cement paste near the surface and improve abrasion resistance. Its effectiveness depends on the concrete, and it does not eliminate wear from traffic or abrasive dirt.
No. ASTM C779/C779M-19 measures relative abrasion resistance under defined procedures. It is not intended to quantify the service life of a floor.
Not without evidence supporting the comparison. The procedures can apply different abrasive forces. Identify the method, procedure, units and duration before comparing reported results.
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